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    (Original post by Carman3)
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    As soon as you see something of the form a\sin \theta + b\sin \theta, you should be thinking about using Rsin/cos identities.

    Especially for maximum/minimum questions.
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    (Original post by Carman3)
    As above
    What do you think? It's pretty obvious.
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    (Original post by RDKGames)
    What do you think? It's pretty obvious.
    ermm it is not obvious. the answer is not 6 btw.
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    (Original post by RDKGames)
    Yeah it is. Max cos(2x) and sin(2x) can take up is 1 so replace them with it.
    :facepalm2:
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    (Original post by notnek)
    As soon as you see something of the form a\sin \theta + b\sin \theta, you should be thinking about using Rsin/cos identities.

    Especially for maximum/minimum questions.
    Thanks i see it now
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    (Original post by the bear)
    :facepalm2:
    lol
 
 
 
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